From 85c675d0d09a45a135bddd15d7b385f8758c32fb Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 18 May 2024 19:35:05 +0200
Subject: Adding upstream version 6.7.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tools/perf/util/rlimit.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'tools/perf/util/rlimit.c')

diff --git a/tools/perf/util/rlimit.c b/tools/perf/util/rlimit.c
index 13521d392a..f857405fe1 100644
--- a/tools/perf/util/rlimit.c
+++ b/tools/perf/util/rlimit.c
@@ -1,5 +1,6 @@
 /* SPDX-License-Identifier: LGPL-2.1 */
 
+#include <errno.h>
 #include "util/debug.h"
 #include "util/rlimit.h"
 #include <sys/time.h>
@@ -27,3 +28,30 @@ void rlimit__bump_memlock(void)
 		}
 	}
 }
+
+bool rlimit__increase_nofile(enum rlimit_action *set_rlimit)
+{
+	int old_errno;
+	struct rlimit l;
+
+	if (*set_rlimit < INCREASED_MAX) {
+		old_errno = errno;
+
+		if (getrlimit(RLIMIT_NOFILE, &l) == 0) {
+			if (*set_rlimit == NO_CHANGE) {
+				l.rlim_cur = l.rlim_max;
+			} else {
+				l.rlim_cur = l.rlim_max + 1000;
+				l.rlim_max = l.rlim_cur;
+			}
+			if (setrlimit(RLIMIT_NOFILE, &l) == 0) {
+				(*set_rlimit) += 1;
+				errno = old_errno;
+				return true;
+			}
+		}
+		errno = old_errno;
+	}
+
+	return false;
+}
-- 
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